package servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.SQLException;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import service.GoodsService;
import util.JsonTools;

import entities.GoodsEntity;

public class GoodsServlet extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public GoodsServlet() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doGet method of the servlet. <br>
	 * 
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request
	 *            the request send by the client to the server
	 * @param response
	 *            the response send by the server to the client
	 * @throws ServletException
	 *             if an error occurred
	 * @throws IOException
	 *             if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		doPost(request, response);
	}

	/**
	 * The doPost method of the servlet. <br>
	 * 
	 * This method is called when a form has its tag value method equals to
	 * post.
	 * 
	 * @param request
	 *            the request send by the client to the server
	 * @param response
	 *            the response send by the server to the client
	 * @throws ServletException
	 *             if an error occurred
	 * @throws IOException
	 *             if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		response.setContentType("text/html");
		request.setCharacterEncoding("UTF-8");
		response.setCharacterEncoding("UTF-8");

		PrintWriter out = response.getWriter();
		String pageIndex = request.getParameter("pageIndex");
		String sellerId = request.getParameter("sellerId");
		String key = request.getParameter("key");
		String clsId = request.getParameter("classId");
		String price = request.getParameter("price");

		// 都到分页商品数据
		List<GoodsEntity> goodsList = null;
		try {
			goodsList = GoodsService.getPageGoods(key, clsId, price, sellerId, pageIndex);
		} catch (SQLException e) {
			e.printStackTrace();
		}
		if (goodsList.size() > 0) {
			out.print(JsonTools.createJsonString(goodsList));
			System.out.println(JsonTools.createJsonString(goodsList));
		} else {
			out.print("[{\"id\":0}]");
		}
		out.flush();
		out.close();
	}

	/**
	 * Initialization of the servlet. <br>
	 * 
	 * @throws ServletException
	 *             if an error occurs
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}
